<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
    </head>
    <body>
        <form action="/user/login" method="post">
            昵称：<input type="text" name="nickname"/><br/>
            <input type="submit" value="登录"/>
        </form>
    </body>
</html>